Container with detachable closure



H. L. DARDELET CONTAINER WITH DETACHABLE CLOSURE Filed June 26, 1929 2 Sheets-Sheet 1 I'NVENTOR yaaslowfiajdeld ATTORN EYS Dec. 8, 1931. DARDELET 1,835,016

CONTAINER WITH DETACHABLE CLOSURE Filed June 26; 1929 2 Sheets-Sheet 2 ATTORNEYS.

Patented Dec. 8, 1931 UNITED STATES PATENT OFFICE.

HUGUES LOUIS DARDELET, OF NANTES, FRANCE, ASSIGNOR, BY MESNE ASSIGNMENTS, TO DARDELET THREADLOGK CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE CONTAINER WITH DETACHABLE CLOSURE Application filed June 26, 1929, Serial No. 373,879, and in France May 30, 1929.

and to provide a glass ar or the like having a one-piece sheet metal cap or closure which may be replaced after removal and is detachably but securely held in closing position 7 without employing coupling screw threads.

Other objects and advantages of the invention will appear from the following description in detail of the embodiment thereof illustrated in the accompanying drawings.

In the drawings Fig. 1 is a side elevation of a jar with its cap locked thereon;

Fig. 2 is a top plan view of the sealed jar showing a cap applying and removing wrench in position for unlocking the cap;

Figs. 3 and 4 are views of the wrench;

Fig. 5 is a sectional view of the jar cap taken on the line 55 of Fig. 2;

Fig. 6 is a fragmentary sectional view on the line 6-6 of Fig. 7 showing the cap passed directly downward about the jar neck and loosely seated on the top of the neck of the ar;

Fig. 7 is a sectional view on the line 7-7 of Fig. 6;

Fig. 8 is a view similar to Fig. 6 showing the cap rotated into locked posit-ion; and

Fig. 9 is a view similar to Fig. 7 showing the cap rotated into locked position.

The invention is shown embodied in a covered container suitable for holding liquid,

plastic or solid materials and comprising a glass jar or container body 10 and a detachable sheet metal cap or cover 11, the cap having preferably acork plate 12, thereincovering the under face of the flat top wall of the cap. Thejar has a reduced neck or mouth portion 13 at its upper end, the outer surface of which for a substantial distance downward from the upper edge thereof has portion have an external profile of the shape of substantially one convolution of an Archimedean spiral with the endsof the spiral line united by a short line preferably extending in an ogee or reverse curve to merge smoothly with the spiral line. There is thus formed on the exterior of the ar mouth a cap flange engaging locking surface portion 14 and an abutment surface portion 15.

The cap comprises a flat top wall having a pendent continuous skirt or flange consisting of a locking wall portion 11 and an abutment wall portion 11 The top wall of the cap has the same outline as the external horizontal cross-sectional profile of the flangejar mouth, but the smaller open end of the I cap is of the same (or very slightly larger) size internally as the extreme upper end of the flange engaging portion of the jar mouth, so that the cap may be passed directly downward about the jar mouth into the position shown in Figs. 6 and 7.

With the cap in the posit-ion shown in Figs. 6 and 7, it may be securely locked to the jar, by forcibly rotating the cap relatively to the jar a short distance in the direction of the ar row in Fig. 9 by suitable means (such as the wrench shown in Figs. 3 and 4), whereupon the cap assumes the locked position shown in Figs. 8 and 9. The first part of this rotary cap movement takes up the clearance between the locking surface portion 14 of the jar mouth and the locking surface portion 16 of the cap flange, the abutment surface portion 17 of the cap flange moving away from the abutment surface portion 15 of the mouth. Aft-er the locking surfaces contact, the tendency of the cap flange is to continue down the tapered locking surface of the ar mouth and draw the cork plate firmly down on the upper edge of the jar mouth compressing'the cork to form a tight seal. The continued turning effort on the cap after the clearance between the locking surface portions 14 and 16 is taken up also causes the flange to move around the spiral exter or of the jar mouth thereby slightly stretching rotation i-ofzgthe cap, which may only be released intentionally, asb-y turning with the wrench shown in Figs. 3 and 4. Preferably the tangent A to the spiral at the lowest point of the spiral profile line in: each horizontal section should make an angle with the tanfrom which the spiral line is generated which iswithin the angle of friction of the materials in contact.

To stiffen the cap flange between the high and low points of its spiral contour it is preferred to provide the flange along its lower edge with the integral horizontal outward extension or lip 18, and to facilitate attach ment and removal of the cap this lip 18 is provided with an aperture .19 adapted to receive either projecting end of .a pin 20 driven transversely through and tightly swaged in .an aperture near one end of the wrench.

To remove a locked cap the wrench is applied as shown inFig. 2, and its handle end 2'1 forced in the direction-of the arrow in said Fig. '2 until rotation of the cap is arrested by engagement of abutment-surface portions 1-5:.and .17. "The cap may then be lifted off. To lock a cap on, the spirals of the cap flange and mouth are registered and the capslipped straight down. The wrench" is turnedover from its unloekingpo'sition and the opposite end of pin 20 engaged in aperture19, as indicated in Fig. 9, and the handle end then moved in the opposite direction from that in which it' is moved in unlocking the -cap, i.;e. in the direction of the arrow in Fig..,9,. until thecap flange binds tightly on the exterior of the jar mouth. 7

lVhen the cap is locked on the 1' ar mouth as shown infFigs. 1, 2, 8 and 9, it will be observed-than owing to the taper of the cap flange and. exterior of the mouth, the cap is positively held against direct axial or vertical movement in both direct-ions. Thus the frictional grip is not relied upon to hold the cap against direct off movement under any gas pressure that may exist in the jar, or under pressure from the material in the jar when the jar is tipped or inverted, as would be the case if. the Archimedean spiral cross sectional profile wereemployed without the constant downward and inward tapen i For some purposes the taper may be omitted, as a very ,tight frictional grip aroundthe greater portion of the circumference of the mouth and flange maybe o btained without the taper, said grip being-so 'ent B to a circle struck from the center G strong as to require a considerable axially or vertically exerted force to move the cap upward on the jar mouth. The top edge of the mouth may be flat, or it may be formed with an upstanding annular bead .22 as shown.

'By providing a wrench with av-shaped intermediate portion 21 and handle and pin-carrying arms 21 and 21, all lying in the same plane with the arms 21 and21 extending-1n the same general directlon from opposite ends of portion 21 the same :wrench may be employed to remove caps of a wide range of sizes, and the wrench will not contact and crush the abutment wall portion 11 of the cap-flange in unlocking operations.

such a'seal enables a purchaser to ascertain whether the container has been, tampered with since being filled by the packer.

lVhat I claim is: j l. A container having a non threaded cap receiving and holding mouth portion tapering downward and inward at ltSBXtGIlOI and all horizontal sections'of which have an external profile consisting of an Archimedean spiral line extending through substantially one complete turn and a short line Y uniting the ends ofthe spiral line. a

2. A detachable closure cap for containers comprising a top wall and a pendent container mouth receiving and holding skirt tapering downward and inward at'its interior and all horizontal'sections of which have an internal profile consisting of an Archimedean spiral line extending through substantially one complete turn and a shorter line uniting the ends of the spiral line.

3. A container comprising a container body and a detachable closure cap'therefor having respectively a. mouth portion and an uninterrupted mouth embracing flange portion. the opposed external and internal sur- 3 faces of which consist ofa friction locking surface portion and. an abutment surface portion connecting theends of the locking surface portlon, the fr1ct1-on locking surface portions "extending substantially entirely 7 around the mouth andflange and the abutment surface portions being relatively short and being engageable tol mitrotation of' the cap about the mouth ino'ne dlrection, the

locking surface portions being' tightly engageable by rotation ofthe capin the opposite direction, the external profile of the mouth portion and internal profile of the .flangeportion in crosssection in allpla nes lying'betweentheir inner and outer edges consisting of an Archimedean spiral line extending through substantially one complete convolution and a much shorter line uniting the ends of said spiral line.

4. A container comprising a container body having a threadless mouth portion and a detachable closure cap therefor having a threadless skirt portion detachably embracing the mouth portion, the opposed wall surfaces of the mouth and skirt portions each consisting of a locking wall surface portion extending substantially entirely around said mouth and skirt portions and an abutment wall surface portion joining the ends of said locking surface portion, the locking wall surface portions similarly tapering inwardly from edge to edge thereof as they recede respectively from the outer ends of the mouth portion and cap, the profiles of the said opposed wall surfaces of the mouth and skirt portions of the body and cap each consisting of an Archimedean spiral line and a shorter line uniting the ends of the spiral line in all planes perpendicular to the center line of the engaged skirt and mouth portions, and the minimum internal size of the skirt portion of the cap being at least as great as the maximum external size of the mouth portion.

5. A container comprising a container body having a threadless mouth portion and a detachable closure cap therefor having a threadless skirt portion detachably embracing the mouth portion, the opposed Wall surfaces of the mouth and skirt portions each consisting of a locking wall surface portion extending substantially entirely around said mouth and skirt portions and an abutment wall surface portion joining the ends of said locking surface portion, the locking wall surface portions similarly tapering inwardly from edge to edge thereof as they recede respectively from the outer ends of the mouth portion and cap, the profiles of the said opposed wall surfaces of the mouth and skirt portions of the body and cap each consisting of an Archimedean spiral line and a shorter line uniting the ends of the spiral line in all planes perpendicular to the center line of the engaged skirt and mouth portions, and the minimum internalsize of the cap and maximum external size of the mouth portion of the body being such that the cap may be moved rectilinearly on and off of the mouth portion only when the abutment wall surface portions of the mouth portion of the body and the skirt portion of the cap are brought substantially into alignment.

6. A container comprising a container body having an upwardly extending mouth portion, and a detachable metal closure cap therefor having a continuous pendent attachment flange extending around the outside of said mouth portion, the flange and the external surface of said mouth portion enclosed by the flange being of similar contour and each having in all horizontal sections a profile consisting of an Archimedean spiral line and a line uniting the ends of said spiral line, the size of said profiles in different horizontal planes decreasing in the order of approach of said planes to the bottom of the container.

7. A container comprising a container body having an upwardly extending mouth portion, and a detachable metal closure cap therefor having a continuous pendent attachment flange extending around the outside of said mouth portion, the flange and the external surface of said mouth portion enclosed by the flange being of similar contour and each having in all horizontal sections a profile consisting of an Archimedean spiral line and a line uniting the ends of said spiral line, the size of said profiles in different horizontal planes decreasing in the order of approach of said planes to the bottom of the container, and said flange having an integral horizontally disposed lip extending outwardly from the lower edge thereof, the outer edge of which merges at opposite ends with the spirally extending portion of the flange at opposite sides of that portion of the flange,

connecting the ends of the spirally extending flange portion, said lip having a wrench-receiving aperture therein.

8. A container having an annular outlet portion and a closure cap for said outlet portion having a cavity in which the outlet portion is engageable, characterized by the fact that said cavity progressively increases in size in-transverse section from its open end toward its closed end and in all planes perpendicular to the direction of its length has a profile consisting of an Archimedean spiral line and a line uniting the ends of said spiral line, while said outlet portion throughout that part thereof receivable in the cavity, has a peripheral contour corresponding with that of the circumferential wall of the cavity, the relative sizes of the cavity at its open end and of the outlet portion at its outer end being such as to permit direct rectilinear movement of the cap on to and off of the outlet portion only when the cap is so rotatively adjusted relatively to the outlet as to bring the non-circular open end of the cavity substantially into endwise register with the corresponding non-circular periphery of the outer end of the outlet portion.

In testimony whereof I hereunto aflix my signature.

HUGUES LOUIS DARDELET. 

